EP 1749152 B1 20080604 - DRIVE DEVICE FOR A DUAL-CYLINDER SLURRY PUMP AND METHOD FOR OPERATING SAID PUMP
Title (en)
DRIVE DEVICE FOR A DUAL-CYLINDER SLURRY PUMP AND METHOD FOR OPERATING SAID PUMP
Title (de)
ANTRIEBSEINRICHTUNG FÜR EINE ZWEIZYLINDERDICKSTOFFPUMPE UND VERFAHREN ZUM BETRIEB DERSELBEN
Title (fr)
DISPOSITIF D'ENTRAINEMENT POUR UNE POMPE A LIQUIDES EPAIS A DEUX CYLINDRES ET PROCEDE POUR FAIRE FONCTIONNER LEDIT DISPOSITIF
Publication
Application
Priority
- EP 2005004113 W 20050418
- DE 102004025910 A 20040527
Abstract (en)
[origin: WO2005119057A1] The invention relates to a method for operating a drive device for a dual-cylinder slurry pump and to a drive device for a dual-cylinder slurry pump, comprising two drive cylinders that are actuated by means of a fluid (1, 2), said cylinders alternately charging a common delivery line with slurry, in particular concrete, via a pipe switch (RW), in particular indirectly by means of driven delivery cylinders (FR, FL). According to the invention, the pipe switch is likewise actuated by means of a fluid using an actuator cylinder (SZ) and as early as the final displacement of the piston of each drive cylinder in its stroke, prior to said piston reaching its final position, at least part of the fluid stream that is provided to actuate the drive cylinder is used to actuate the actuator cylinder.
IPC 8 full level
F04B 7/02 (2006.01); F04B 7/00 (2006.01); F04B 9/117 (2006.01); F04B 15/02 (2006.01)
CPC (source: EP KR US)
F04B 7/0026 (2013.01 - EP US); F04B 7/02 (2013.01 - KR); F04B 9/1178 (2013.01 - EP US); F04B 15/02 (2013.01 - KR); F04B 15/023 (2013.01 - EP US); F04B 2203/0903 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2005119057 A1 20051215; AT E397726 T1 20080615; AU 2005250538 A1 20051215; BR PI0511335 A 20071204; CA 2567445 A1 20051215; CN 1961152 A 20070509; CN 1961152 B 20101215; DE 102004025910 A1 20051222; DE 102004025910 B4 20090520; DE 502005004346 D1 20080717; EP 1749152 A1 20070207; EP 1749152 B1 20080604; ES 2289973 T1 20080216; ES 2289973 T3 20081201; JP 2008500483 A 20080110; KR 20070026538 A 20070308; RU 2006140233 A 20080520; RU 2358154 C2 20090610; US 2007274850 A1 20071129
DOCDB simple family (application)
EP 2005004113 W 20050418; AT 05733928 T 20050418; AU 2005250538 A 20050418; BR PI0511335 A 20050418; CA 2567445 A 20050418; CN 200580017176 A 20050418; DE 102004025910 A 20040527; DE 502005004346 T 20050418; EP 05733928 A 20050418; ES 05733928 T 20050418; JP 2007513716 A 20050418; KR 20067024894 A 20061127; RU 2006140233 A 20050418; US 56949705 A 20050418